TY - JOUR
AU - Baranov, M. I.
AU - Buriakovskyi, S. G.
AU - Kniaziev, V. V.
PY - 2023/01/04
Y2 - 2024/06/22
TI - A calculation of basic thermophysical, gasodynamic and electropower parameters of electric explosion is in the gas environment of metallic explorer
JF - Electrical Engineering & Electromechanics
JA - Electrical Engineering & Electromechanics
VL -
IS - 1
SE - Engineering Electrophysics. High Electric and Magnetic Field Engineering
DO - 10.20998/2074-272X.2023.1.06
UR - http://eie.khpi.edu.ua/article/view/271078
SP - 40-50
AB - <p><strong><em>Goal.</em></strong><em> Receipt and analysis of close analytical correlations for the engineering calculation of maximal temperature of T<sub>m</sub> and pressures of P<sub>m</sub> in a plasma channel, time of t<sub>ex</sub> explosion of explorer, active resistance of R<sub>c</sub> and specific conductivity of γ<sub>p</sub> of plasma channel, to entered in explorer W<sub>i</sub> and selected in the channel of W<sub>c</sub> of thermal energy and high speed of v<sub>mw</sub> distribution of shock acoustic wave in the plasma products of electric explosion (EE) in gas of explorer under the action of large impulsive current (LIC). <strong>Methodology.</strong> Basis of thermophysics, thermodynamics, theoretical and applied electrical engineering, electrophysics bases of technique of high-voltage and large impulsive currents, basis of heavy-current electronics, theory of explosion and plasma, measuring technique and electromagnetic compatibility. <strong>Results</strong> . Close formulas are got for the analytical calculation of temperature of T<sub>m</sub> and pressures of P<sub>m</sub> in a plasma channel, time of t<sub>ex</sub> explosion of explorer, active resistance of R<sub>c</sub> and specific conductivity of γ<sub>p</sub> of plasma channel, to entered in explorer W<sub>i</sub> and selected in the channel of W<sub>c</sub> of thermal energy and speed of v<sub>mw </sub>of shock acoustic wave in «metallic plasma» at EE in gas of explorer, testing action LIC in the discharge chain of high-voltage generator of impulsive currents (GIC) with the stocked energy of W<sub>0</sub>. It is rotined that at EE in atmospheric air of copper explorer long 110 mm and by a radius 0,1 mm in the bit chain of GIC of the microsecond temporal range (I<sub>mc</sub>≈−190 кА; t<sub>mc</sub>≈42 μs; ω<sub>c</sub>≈26,18·10<sup>3</sup> s<sup>-1</sup>; W<sub>0</sub>≈121,4 кJ) levels of temperature of T<sub>m</sub>, to time of t<sub>ex</sub> explosion, pressures of P<sub>m</sub> and speeds of v<sub>mw</sub> in the area of his explosion can arrive at numeral values: T<sub>m</sub>≈121,6·10<sup>3</sup> K, t<sub>ex</sub>≈3,32 μs; P<sub>m</sub>≈14,19·10<sup>9</sup> Pa and v<sub>mw</sub>≈4693 m/s. The ways of receipt are formulated in the bit chain of GIC of «record» (most) values of temperature of T<sub>m</sub>, pressures of P<sub>m </sub>and speeds of v<sub>mw</sub>. It is set that at EE in atmospheric air of the indicated short thin copper explorer the coefficient of the useful use of η<sub>c</sub> of electric energy of W<sub>0</sub> of condenser battery of GIC arrives at the numeral value of η<sub>c</sub>≈(W<sub>i</sub>+W<sub>c</sub>)/W<sub>0</sub>≈0,326 (32,6 %). Arising up in the plasma channel of discharge, initiated EE in gas of explorer, temperature of T<sub>m</sub> and pressure of P<sub>m</sub>, time of t<sub>ex</sub> explosion of explorer, specific conductivity of γ<sub>p</sub> of channel, thermal energy of W<sub>c</sub> and speed of v<sub>mw</sub> of shock acoustic wave selected in a channel in «metallic plasma» can be certain experimental a way on results decoding of oscillograms of discharge current of i<sub>c</sub>(t) and high-voltage of u<sub>c</sub>(t) on an explorer in the chain of GIC. A formula is resulted for the close calculation of critical integral of current of J<sub>k</sub> at EE in gas of explorers from different metals. Executed on powerful GIC heavy-current experiments were confirmed by substantive provisions offered approach near the analytical calculation of basic parameters of electro-explosive process for the probed explorer. <strong>Originality.</strong> Offered and the engineering going is scientifically grounded near the analytical calculation of the indicated thermophysical, gasodynamic and electroenergy parameters of T<sub>m</sub>, P<sub>m</sub>, t<sub>ex</sub>, R<sub>c</sub>, γ<sub>p</sub>, W<sub>i</sub>, W<sub>c</sub> and v<sub>mw</sub> at EE in gas of metallic explorer, plugged in the discharge chain of GIC. <strong>Practical value.</strong> Application in electrophysics practice of the offered engineering going near a calculation in the chain of GIC of basic parameters of electro-explosive process will allow to facilitate labour of workers of scientific laboratories and promote efficiency of work of technicians-and-engineers during practical realization by them different electro-explosive technologies. </em></p>
ER -